The water-soluble tripolymer of maleic anhydride(MA), sodium allylsufonate(SAS)and acrylamide(AM) was prepared with water as solvent and persulfate as initiator.
In this paper,two methods for analyzing air sulphation rate were studied and compared.One was ion chromatography and the other was barium sulfate spectrophotometry.
The low charging rate in conjunction with acid stratification cause a significant undercharging of the low part of the electrodes,which again causes accelerated sulphation.
Saline deposits of salt lake consist of more t han 10 salt minerals, but the glauber salt, glaserite, pgrotechnite, hanksite, n atron, trona and halite are mainly salt minerals.